Update jshint to stable version 1.1.0

This updates the jshint.js file to match the current file from http://jshint.com/get/jshint-1.1.0.js (with node export tweak added to the end).  jshint 1.1.0 release notes are up at http://jshint.com/blog/2013-03-05/1-1-0/